From 761bd05f107b856c8aefeb3e753fa94221f926bc Mon Sep 17 00:00:00 2001
From: Wohlstand <admin@wohlnet.ru>
Date: Mon, 24 Aug 2020 13:32:11 +0300
Subject: Fixed a bug of junk instruments instead of blank

---
 src/adlmidi_opl3.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/adlmidi_opl3.cpp')

diff --git a/src/adlmidi_opl3.cpp b/src/adlmidi_opl3.cpp
index 3648956..27baa22 100644
--- a/src/adlmidi_opl3.cpp
+++ b/src/adlmidi_opl3.cpp
@@ -320,7 +320,10 @@ void OPL3::setEmbeddedBank(uint32_t bank)
 
             for(size_t instId = 0; instId < 128; instId++)
             {
-                BanksDump::InstrumentEntry instIn = g_embeddedBanksInstruments[bankData.insts[instId]];
+                midi_bank_idx_t instIndex = bankData.insts[instId];
+                if(instIndex < 0)
+                    continue;
+                BanksDump::InstrumentEntry instIn = g_embeddedBanksInstruments[instIndex];
                 adlinsdata2 &instOut = bankTarget.ins[instId];
 
                 adlFromInstrument(instIn, instOut);
-- 
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